Current price is old and needs updating, here's my research on this hat:

Let's start with my first link - http://www.tf2outpost.com/trade/6250777

This trade is 3 months old, I did scan through the offers, but I was mostly looking at the more recent offers for a better idea of the price. Notice right at the bottom, a user called "Riot Punch" originally offered on this trade, 3.3 buds, however after the trade owner replied saying that he would do it at 3.5, Riot Punch then said that he bought it for 4 buds already, and this was a day ago, meaning there COULD be some people out there willing to pay up to 4 buds for this thing. I've also seen plenty of 3 bud offers on this trade.

Next up - http://www.tf2outpost.com/trade/8174847

This trade is newer than the last one, but has still been up for a few weeks, it has no pure offers and a few unusual ones ranging from 2 buds to 3.5.

Lastly - http://www.tf2outpost.com/trade/8525536

Nothing much to say about this trade, it was offered a stormy slope but was rejected (and who knows what's going to happen to the price of that), he also has a 3 bud + sweets offer which was also rejected.

In Conclusion, this hat was a tricky price check, not that many recent offers to compare, but according to the trades above, the offers are ranging from 2 buds up to 4 buds. I have no proof of it, but someone once told me they bought one for 2 buds + a big kill (quicksell obviously). 2-4 buds is way too big of a leap, so I've decided to settle on 3.3 buds to 3.6, this seems like a logical price and even though we did see a buyer of 4 buds, I doubt that it will happen again, since we've already seen a seller who was OK with selling it for 3.5.

Thanks for reading.